R&D Heating, Cooling & Electric recently came out to do a seasonal maintenance checkup on my new heating system. I was very pleased with the company that I was using for over twenty years. When I recently had a new heating system installed about a year ago my contractor hired in R&D Heating, Cooling & Electric as they service this particular type of system. It appears that when they did the seasonal checkup they charged me extra for the new filters. I would expect that with the high price that they charge just for a basic checkup visit that they should at least include a filter. I am not happy with that at all and my old company never charged high prices or extra costs like R&D Heating, Cooling & Electric has done to me. My contractor really threw me into using them.